Introduce the backend pieces for brain memory ingestion, routing, and
system telemetry so the new knowledge workflows can project data into a
brain view. The supporting tests lock in the new behavior and keep the
expanded backend surface stable.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
SQLAlchemy wasn't detecting changes when we modified the dict in place
and re-assigned the same object reference. Using deep copy ensures
the ORM sees the update.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
